SRAM X4 骑手轮适配器 3D模型

SRAM X4 jockey wheel adapter

2024-04-04 00:46:12

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Summary

SRAM has started using a different size bolt to fix the lower jockey wheel (tension pulley) starting with X5 derailleur. This adapter fits into the bolt hole in X5+ tension puller and allows it to be used in SRAM X4.

I have printed it in PETG and had it fit. I don't know whether shrinkage is meaningfully different for PLA/ABS at these sizes.

This adapter is only expected to carry radial compression load and is not expected to rub (it goes between two parts, neither of which rotates), so I expect the choice of material to be mostly irrelevant (as long as the material won't degrade when wet and when exposed to lubricants).